.look_div {
    border: 2px solid #EEEEEE;
    z-index: 99;
    width: 700px;
    left: 20%;
    position: fixed;
    top: 20px;
    background-color: white;
}

.out_bg {
    position: absolute;
    top: 0;
    opacity: 0.4;
    background-color: black;
    z-index: 3;
    width: 100%;
}